impurities are out of the question. Rotatiger is used for roughening, but no real roughening can be made, leaving only spots on the ground.
Unfortunately, surface preparation cannot be carried out by conventional methods. Surface preparation is half of industrial flooring. It would not be wrong to compare an unsuitable application to a structure whose foundation is not solid. One of the most important advantages of the vacuum ball machine is; at the same time by roughening and taking the sherbet layer and the surface is free of dust, oil and dirt is ready for the primer.
Surface and Crack Repair: Errors such as pits, cracks, fractures, segregation are made with epoxy primer and epoxy mortar. Repairs with depths greater than 4-5 mm can be made with cement based repair mortars suitable for epoxy coating. If the cracks are deep and there is a danger of water coming from the ground, it is necessary to fill the crack section by epoxy injection.